If you need to register or have questions about a dog you can use live chat (Bark Live) on this page or call 1-800-952-3376. For more information on registration visit www.bit.ly/CKCreg. To learn more about CKC visit www.bit.ly/CKCabout.
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The world's largest dog was an English Mastiff named Zorba. He was measured at 343 lbs., 37 inches tall, and 8 feet 3 inches from tail to nose.
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